5 USC 5701 - Definitions

Except as otherwise provided in section 5707 (d),1 for the purpose of this subchapter
(1) agency means
(A) an Executive agency;
(B) a military department;
(C) an office, agency, or other establishment in the legislative branch;
(D) an office, agency, or other establishment in the judicial branch; and
(E) the government of the District of Columbia; but does not include
(i) a Government controlled corporation;
(ii) a Member of Congress; or
(iii) an office or committee of either House of Congress or of the two Houses;
(2) employee means an individual employed in or under an agency including an individual employed intermittently in the Government service as an expert or consultant and paid on a daily when-actually-employed basis and an individual serving without pay or at $1 a year;
(3) subsistence means lodging, meals, and other necessary expenses for the personal sustenance and comfort of the traveler;
(4) per diem allowance means a daily payment instead of actual expenses for subsistence and fees or tips to porters and stewards;
(5) Government means the Government of the United States and the government of the District of Columbia; and
(6) continental United States means the several States and the District of Columbia, but does not include Alaska or Hawaii.
[1] See References in Text note below.